MEDIUM
11th West Bengal Board
IMPORTANT
Earn 100

Define Parsec and light-year, find the relation between them.

Important Questions on Measurement and Physics

EASY
11th West Bengal Board
IMPORTANT
Which unit is convenient to express the distance within the solar system.
EASY
11th West Bengal Board
IMPORTANT
Which unit of mass is approximately equal to the mass of a proton?
MEDIUM
11th West Bengal Board
IMPORTANT
What are the accuracy and the precision of a measuring instrument?
EASY
11th West Bengal Board
IMPORTANT
What is absolute error of a measurement?
EASY
11th West Bengal Board
IMPORTANT
What should be the sign of absolute error?
EASY
11th West Bengal Board
IMPORTANT
Why relative error is more significant than absolute error?
EASY
11th West Bengal Board
IMPORTANT
What are the units of absolute error and relative error?
MEDIUM
11th West Bengal Board
IMPORTANT
What are the sources of systematic error and random error?